Locate the first wet patch
Use observations already made and state whether the top mounting stayed dry. Keep water away from electrical connections and stop use where leakage continues.
Do not promise a reseal
An engineer needs to inspect the model and condition before advising whether a serviceable connection or the unit itself is involved. A photograph cannot establish internal damage or a guaranteed repair.
A useful distinction
Visible corrosion or physical damage is relevant but should be photographed without cleaning it away first. A tidy promotional image is separate from service evidence and should never conceal the condition being assessed.